SET @start_value = @@global.table_open_cache ; '#---------------------FN_DYNVARS_001_02-------------------------#' SET @@global.table_open_cache = Default; SELECT @@global.table_open_cache > 0; @@global.table_open_cache > 0 1 '#--------------------FN_DYNVARS_001_03------------------------#' SET @@global.table_open_cache = 8; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '8' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 SET @@global.table_open_cache = 1; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '1' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 SET @@global.table_open_cache = 1073741824; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '1073741824' SELECT @@global.table_open_cache ; @@global.table_open_cache 1048576 SET @@global.table_open_cache = 18000; SELECT @@global.table_open_cache ; @@global.table_open_cache 18000 SET @@global.table_open_cache = 65535; SELECT @@global.table_open_cache ; @@global.table_open_cache 65535 '#--------------------FN_DYNVARS_001_04-------------------------#' SET @@global.table_open_cache = -1; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '-1' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 SET @@global.table_open_cache = 100000000000; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '100000000000' SELECT @@global.table_open_cache ; @@global.table_open_cache 1048576 SET @@global.table_open_cache = -1024; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '-1024' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 SET @@global.table_open_cache = 0; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '0' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 SET @@global.table_open_cache = 10000.01; ERROR 42000: Incorrect argument type to variable 'table_open_cache' SET @@global.table_open_cache = ON; ERROR 42000: Incorrect argument type to variable 'table_open_cache' SET @@global.table_open_cache= 'test'; ERROR 42000: Incorrect argument type to variable 'table_open_cache' SET @@global.table_open_cache = ''; ERROR 42000: Incorrect argument type to variable 'table_open_cache' '#-------------------FN_DYNVARS_001_05----------------------------#' SET @@session.table_open_cache = 0; ERROR HY000: Variable 'table_open_cache' is a GLOBAL variable and should be set with SET GLOBAL '#----------------------FN_DYNVARS_001_06------------------------#' SELECT @@global.table_open_cache = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='table_open_cache '; @@global.table_open_cache = VARIABLE_VALUE 1 '#---------------------FN_DYNVARS_001_09----------------------#' SET @@global.table_open_cache = TRUE; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '1' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 SET @@global.table_open_cache = FALSE; Warnings: Warning 1292 Truncated incorrect table_open_cache value: '0' SELECT @@global.table_open_cache ; @@global.table_open_cache 10 '#---------------------FN_DYNVARS_001_10----------------------#' SET @@global.table_open_cache = 10; SELECT @@table_open_cache = @@global.table_open_cache ; @@table_open_cache = @@global.table_open_cache 1 '#---------------------FN_DYNVARS_001_11----------------------#' SET table_open_cache = 8; ERROR HY000: Variable 'table_open_cache' is a GLOBAL variable and should be set with SET GLOBAL SELECT global.table_open_cache ; ERROR 42S02: Unknown table 'global' in field list SELECT table_open_cache = @@session.table_open_cache ; ERROR 42S22: Unknown column 'table_open_cache' in 'field list' SET @@global.table_open_cache = @start_value;